Close, minimize, and maximize are now close, minimize, and full screen, eliminating the extra full-screen control and consolidating the window controls in one place. Streamlining these and other elements of the interface means you can navigate the desktop more efficiently.

OS X' idea of "maximise" was "some random window resizing nobody really used anyway", so I'm glad Apple finally replaced it with something else. Too bad OS X' fullscreen view is way too disruptive for my tastes to be of any practical use.